The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone

Figure 7

Annular modes (4). ERA-40 reanalysis data: zonal mean differences between AAO⁺ and AAO⁻, respectively, AO⁺ and AO⁻. (a) Temperature T in (K). JJA. (b) Temperature T in (K). DJF. (c) Zonal wind u in (m/s). JJA. (d) Zonal wind u in (m/s). DJF. Confidence levels are given by white lines.

(a)

(b)

(c)

(d)